Finding the Fourth Proportional to 88,036.68, 121,488.12 and 50,310.84
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Solution
The fourth proportional to 88,036.68, 121,488.12 and 50,310.84 is: 69,427.53
Step by Step Solution
- Step 1: Write the proportion equation
88,036.68 : 121,488.12 = 50,310.84 : x - Step 2: Convert to fraction form
88,036.68/121,488.12 = 50,310.84/x - Step 3: Cross multiply
88,036.68x = 121,488.12 × 50,310.84 - Step 4: Simplify right side
88,036.68x = 6,112,169,367.22 - Step 5: Solve for x
x = 6,112,169,367.22/88,036.68 - Step 6: Final answer
x = 69,427.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.